(n.) A water nymph; one of the lower female divinities, fabled to preside over some body of fresh water, as a lake, river, brook, or fountain.
(n.) Any species of a tribe (Naiades) of freshwater bivalves, including Unio, Anodonta, and numerous allied genera; a river mussel.
(n.) One of a group of butterflies. See Nymph.
(n.) Any plant of the order Naiadaceae, such as eelgrass, pondweed, etc.
Example Sentences:
(1) The insects of the Order Odonata both naiads and adults may serve as the second intermediate host of some intestinal parasites in Thailand.
(2) Differences in oxygen consumption attributable to apparent specific dynamic action (SDA) were measured in relation to feeding level in the dragonfly naiad Somatochlora cingulata exposed to low pH and sublethal aluminum concentration plus low pH.
(3) Development of cercariae into infective metacercariae in dragon-fly naiads took 18 days.
(4) Metacercarial cysts were found in dragon-fly naiads (Tholymis tillarga and Tramea limbata) and aquatic bugs (Laccotrephes griseus and Ranatra elongata) collected from a stream.
(5) Overall, predation was maximal in young and mature rice, moderate in the submerged naiad vegetation, and minimal in areas of open water.
(6) However, no remains of mosquito larvae were detected in any of the specimens, even though mosquito larvae were observed as being continuously present in the pond sites where the naiad specimens were collected.
(7) Foregut contents of naiads of the damselfly species, Enallagma civile, collected from a permanent pond, were analyzed to determine the natural prey for immatures of this species.
(8) Corixid, cladoceran, ostracod and aquatic mite remains were found in some of the naiad specimens examined.
(9) The analyses revealed the naiads containing prey had fed predominantly on chironomid larvae.
(10) Although predator abundances differed in these studies, sometimes by an order of magnitude, the common predators colonized mesocosms in the following order: Triops, hydrophilid beetle larvae, dytiscid beetle larvae, mesoveliids, dragonfly and damselfly naiads, and notonectids.
(11) Based on relative abundance and correlation over time and space, zygopteran naiads were the most important predator at a stable foothill breeding site during 1985, and coleopteran larvae were the most important predator at ephemeral breeding sites sampled during 1986.
Nereid
Definition:
(n.) A sea nymph, one of the daughters of Nereus, who were attendants upon Neptune, and were represented as riding on sea horses, sometimes with the human form entire, and sometimes with the tail of a fish.
(n.) Any species of Nereis. The word is sometimes used for similar annelids of other families.
Example Sentences:
(1) There have been no reports on the distribution of immunoreactive endothelin (ir-ET) in lower vertebrates and invertebrates, except for our previous studies on the nereid Neanthes diversicolor and the earthworm Eisenia foetida.
(2) The tetrapeptide FMRFamide which is present in extracts of Nereis virens was localized in various nereid tissues immunohistochemically.
(3) The reproduction of Nereid Perinereis cultrifera in the English Channel and the Atlantic is of an epitokous type.
(4) The same Nereid in the Mediterranean (Bay of Alger) has been described as atokous (Marcel, 1962) and since that time epitoky in mediterranean specimens has been considered to be an accidental phenomenon.
(5) These results assert that eleocytes are the vitellogenin producing cells in nereids.
(6) Guests can be photographed dressed as ancient Greeks and Egyptians round the marbles - which are also used as the main venue for late evening drinks after guests have wined and dined in the "magnificent" surroundings of the 2,400-year-old temple dedicated to Nereid, the sea nymphs of Greek mythology.